mdcat logical reasoning MCQ #424

Given: Some A are B. All B are C. Which conclusion is invalid?

mdcat logical reasoning MCQ #424

  1. Question 1

    Q1. Given: Some A are B. All B are C. Which conclusion is invalid?

    • A) Some A are C.
    • B) All C are B.
    • C) Some C are A.
    • D) No A are C.

    Answer: All C are B.

    Explanation: B⊂C but C⊄B. Is converse of premise. All C are B is correct because it matches what the question requires. USAT, HAT and MDCAT analytical sections repeat this pattern.